CN204383029U - A kind of Novel suspending Self-absorption blackboard erazer - Google Patents
A kind of Novel suspending Self-absorption blackboard erazer Download PDFInfo
- Publication number
- CN204383029U CN204383029U CN201520081088.4U CN201520081088U CN204383029U CN 204383029 U CN204383029 U CN 204383029U CN 201520081088 U CN201520081088 U CN 201520081088U CN 204383029 U CN204383029 U CN 204383029U
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- CN
- China
- Prior art keywords
- metallic plate
- outer metallic
- shell
- interior
- blackboard
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Abstract
The utility model discloses a kind of Novel suspending Self-absorption blackboard erazer, comprise blackboard eraser body, hairbrush and shell, described blackboard eraser body is the hollow structure be made up of the outer metallic plate be arranged in parallel and interior metallic plate, and one end of blackboard eraser body is provided with for controlling in electricity that outer metallic plate is connected with interior metallic plate and switch, the other end of blackboard eraser body is provided with the ash collecting box collecting chalk dust, spring a is provided with between described outer metallic plate and shell, outer metallic plate is made to be in suspended state, and when spring a is compressed, outer metallic plate and the metal block contact be arranged on shell, be provided with battery case in described shell, battery is installed in the inside, and the negative pole of described battery is connected with metal derby by wire, and the positive pole of battery is connected with interior metallic plate by wire, and interior metallic plate and outer metallic plate form plane-parallel capacitor.The utility model can solve when blackboard wiping, and chalk dust is scattering in air the problem that teachers and students' health works the mischief.
Description
Technical field
The utility model relates to a kind of blackboard eraser, specifically a kind of Novel suspending Self-absorption blackboard erazer.
Background technology
The blackboard eraser of present use is always difficult to blackboard eraser clean, clean also very difficult, and blackboard eraser is clean, and classmates attend class the word being difficult to see clearly on blackboard, and efficiency of attending class also reduced many naturally.The chalk dust simultaneously kicked up by blackboard eraser brings great harm to the healthy of academics and students.
Utility model content
The purpose of this utility model is to provide one to use Novel suspending Self-absorption blackboard erazer simply and easily, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of Novel suspending Self-absorption blackboard erazer, comprise blackboard eraser body, hairbrush and shell, described blackboard eraser body is the hollow structure be made up of the outer metallic plate be arranged in parallel and interior metallic plate, and one end of blackboard eraser body is provided with for controlling in electricity that outer metallic plate is connected with interior metallic plate and switch, and in electricity and switch and be provided with spring b between outer metallic plate and interior metallic plate, the other end of blackboard eraser body is provided with the ash collecting box collecting chalk dust, spring a is provided with between described outer metallic plate and shell, outer metallic plate is made to be in suspended state, and when spring a is compressed, outer metallic plate and the metal block contact be arranged on shell, described hairbrush the inner through the hairbrush hole on outer metallic plate, and is fixed on interior metallic plate, be provided with battery case in described shell, battery is installed in the inside, and the negative pole of described battery is connected with metal derby by wire, and the positive pole of battery is connected with interior metallic plate by wire, and interior metallic plate and outer metallic plate form plane-parallel capacitor.
As further program of the utility model: the edge of described outer metallic plate is also provided with scratch resistant pad.
As further program of the utility model: described outer metallic plate is also provided with some air suction openings.
Compared with prior art, the beneficial effects of the utility model are: this Novel suspending Self-absorption blackboard erazer can solve when blackboard wiping, chalk dust is scattering in air the problem that teachers and students' health works the mischief, simultaneously because chalk ash collection can get up by this device, therefore collected chalk dust can be recycled and reused, economize on resources and protection of the environment; This device low cost of manufacture, is suitable for producing in enormous quantities, can extensive use.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of Novel suspending Self-absorption blackboard erazer;
Fig. 2 is the Facad structure schematic diagram of Novel suspending Self-absorption blackboard erazer;
In figure: in the outer metallic plate of 1-, 2-spring a, 3-electricity and switch, metallic plate, 6-power supply, 7-hairbrush, the scratch resistant pad in 8-edge, 9-metal derby, 10-ash collecting box, 11-wire, 12-shell, 13-air suction opening, 14-hairbrush hole in 4-spring b, 5-.
Detailed description of the invention
Be described in more detail below in conjunction with the technical scheme of detailed description of the invention to this patent.
Refer to Fig. 1-2, a kind of Novel suspending Self-absorption blackboard erazer, comprise blackboard eraser body, hairbrush 7 and shell 12, described blackboard eraser body is the hollow structure be made up of the outer metallic plate 1 be arranged in parallel and interior metallic plate 5, and one end of blackboard eraser body is provided with for controlling in electricity that outer metallic plate 1 is connected with interior metallic plate 5 and switch 3, and in electricity and switch 3 and be provided with spring b4 between outer metallic plate 1 and interior metallic plate 5, the other end of blackboard eraser body is provided with the ash collecting box 10 collecting chalk dust, spring a2 is provided with between described outer metallic plate 1 and shell 12, outer metallic plate 1 is made to be in suspended state, and when spring a2 is compressed a certain amount of, outer metallic plate 1 contacts with the metal derby 9 be arranged on shell 12, the edge of described outer metallic plate 1 is also provided with scratch resistant pad 8, can play the effect of protection blackboard, described hairbrush 7 can fully by the chalk dust brush on blackboard from blackboard, described hairbrush 7 the inner through the hairbrush hole 14 on outer metallic plate 1, and is fixed on interior metallic plate 5, and described outer metallic plate 1 is also provided with some air suction openings 13, be provided with battery case in described shell 12, battery 6 is installed in the inside, and the negative pole of described battery 6 is connected with metal derby 9 by wire 11, and the positive pole of battery 6 is connected with interior metallic plate 5 by wire 11, and interior metallic plate 5 forms plane-parallel capacitor with outer metallic plate 1.
Operation principle of the present utility model is: in use, outer metallic plate 1 extrusion spring a2, and then outer metallic plate 1 contacts with metal derby 9, the plane-parallel capacitor meeting quick charge that outer metallic plate 1 and interior metallic plate 5 are formed, accelerate the inside metallic plate 5 of chalk dust to move, and be finally adsorbed on interior metallic plate 5; After blackboard eraser is finished using, under the effect of spring a2, outer metallic plate 1 departs from metal derby 9, and plane-parallel capacitor does not recharge; At this moment press in electricity and switch 3, interior metallic plate 5 can be made to neutralize with the electricity of outer metallic plate 1, and the chalk dust be adsorbed on interior metallic plate 5 can depart from interior metallic plate 5, fall into ash collecting box 10, when storing larger chalk dust in ash collecting box 10, taking off ash collecting box 10, outwelling chalk dust.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, can also makes a variety of changes under the prerequisite not departing from this patent aim.
Claims (3)
1. a Novel suspending Self-absorption blackboard erazer, comprise blackboard eraser body, hairbrush (7) and shell (12), it is characterized in that, described blackboard eraser body is the hollow structure be made up of the outer metallic plate (1) be arranged in parallel and interior metallic plate (5), and one end of blackboard eraser body is provided with for controlling in electricity that outer metallic plate (1) is connected with interior metallic plate (5) and switch (3), and in electricity and switch (3) and be provided with spring b(4 between outer metallic plate (1) and interior metallic plate (5)), the other end of blackboard eraser body is provided with the ash collecting box (10) collecting chalk dust, spring a(2 is provided with) between described outer metallic plate (1) and shell (12), outer metallic plate (1) is made to be in suspended state, and as spring a(2) by compression a certain amount of time, outer metallic plate (1) contacts with the metal derby (9) be arranged on shell (12), described hairbrush (7) the inner through the hairbrush hole (14) on outer metallic plate (1), and is fixed on interior metallic plate (5), described shell is provided with battery case in (12), battery (6) is installed in the inside, the negative pole of described battery (6) is connected with metal derby (9) by wire (11), the positive pole of battery (6) is connected with interior metallic plate (5) by wire (11), and interior metallic plate (5) and outer metallic plate (1) form plane-parallel capacitor.
2. Novel suspending Self-absorption blackboard erazer according to claim 1, is characterized in that, the edge of described outer metallic plate (1) is also provided with scratch resistant pad (8).
3. Novel suspending Self-absorption blackboard erazer according to claim 1 and 2, is characterized in that, described outer metallic plate (1) is also provided with some air suction openings (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520081088.4U CN204383029U (en) | 2015-02-05 | 2015-02-05 | A kind of Novel suspending Self-absorption blackboard erazer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520081088.4U CN204383029U (en) | 2015-02-05 | 2015-02-05 | A kind of Novel suspending Self-absorption blackboard erazer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204383029U true CN204383029U (en) | 2015-06-10 |
Family
ID=53355778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520081088.4U Expired - Fee Related CN204383029U (en) | 2015-02-05 | 2015-02-05 | A kind of Novel suspending Self-absorption blackboard erazer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204383029U (en) |
-
2015
- 2015-02-05 CN CN201520081088.4U patent/CN204383029U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20160205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |